/Engine/Source/Runtime/RenderCore/Public/ShaderPipelineCache.h
Called byFShaderCodeLibraryto notify us that the shader code library state changed and shader availability will need to be re-evaluated
static void ShaderLibraryStateChanged ( [ELibraryState](API\Runtime\RenderCore\FShaderPipelineCache\ELibraryState) State, EShaderPlatform Platform, [FString](API\Runtime\Core\Containers\FString) const & Name, int32 ComponentID )